Closed-Loop Recycling of Poly(Imine-Carbonate) Derived from Plastic Waste and Bio-based Resources

Autor: Keita Saito, Fabian Eisenreich, Tankut Türel, Željko Tomović
Přispěvatelé: Polymer Performance Materials, Macro-Organic Chemistry, ICMS Core
Rok vydání: 2022
Předmět:
Zdroj: Angewandte Chemie-International Edition, 61(43):e202211806, 1-8. Wiley
ISSN: 1521-3773
0570-0833
Popis: Closed-loop recycling of polymers represents the keytechnology to convert plastic waste in a sustainable fashion.Efficient chemical recycling and upcycling strategies are thushighly sought-after to establish a circular plastic economy. Here,we present the selective chemical depolymerization ofpolycarbonate by employing a vanillin derivative as bio-basedfeedstock. The resulting di-vanillin carbonate monomer was usedin combination with various amines to construct a library ofreprocessable poly(imine-carbonate)s, which show tailor-madethermal and mechanical properties. These novel poly(iminecarbonate)s exhibit excellent recyclability under acidic andenergy-efficient conditions. This allows the recovery of monomersin high yields and purity for immediate reuse, even when mixedwith various commodity plastics. This work provides exciting newinsights in the design of bio-based circular polymers produced byupcycling of plastic waste with minimal environmental impact.
Closed-loop recycling of polymers represents the key technology to convert plastic waste in a sustainable fashion. Efficient chemical recycling and upcycling strategies are thus highly sought-after to establish a circular plastic economy. Here, we present the selective chemical depolymerization of polycarbonate by employing a vanillin derivative as bio-based feedstock. The resulting di-vanillin carbonate monomer was used in combination with various amines to construct a library of reprocessable poly(imine-carbonate)s, which show tailor-made thermal and mechanical properties. These novel poly(imine-carbonate)s exhibit excellent recyclability under acidic and energy-efficient conditions. This allows the recovery of monomers in high yields and purity for immediate reuse, even when mixed with various commodity plastics. This work provides exciting new insights in the design of bio-based circular polymers produced by upcycling of plastic waste with minimal environmental impact.
Databáze: OpenAIRE
Externí odkaz: